Can you do an egg to rise in water? In this basic science experiment, we take simply a couple of minutes to test the laws of density and discover just how easy that is to do make an egg float!

Below you’ll find in-depth instructions and our demonstration video clip as well as the scientific explanation the “why the works.” We’ve additionally included a much more ideas to discover the principle a little bit further.

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Supplies Needed

2 Eggs2 tall Drinking GlassSaltWater

Floating Egg scientific research EXPERIMENT INSTRUCTIONS

Experiment Setup – begin with some observations about the eggs. Note that they space both life eggs and have a comparable size and also weight. Then ask part questions. Perform you think that the eggs will sink or to rise when put in water? carry out you think it’s possible to do them float? If so, how? compose down your theory (prediction) and then follow the procedures below.


Step 1 – Fill a tall drinking glass around 3/4 full of water and carefully ar the egg into the glass. What wake up to the egg? That’s right, it sinks to the bottom.

Did you know there is a means to do it float? proceed on in the experiment to find out how.


Step 2 – Fill an additional tall drink glass around 3/4 complete of water.


Step 3 – Add 3 Tablespoons the salt come the water and stir till it is completely combined. What carry out you think will occur if you place the egg right into the glass with the salt water? write down your theory (prediction) and also then test it to watch if you to be right.


Step 5 – Next very closely place the 2nd egg into the glass with the salt water. What happens to the egg? That’s right, the floats. Take it a moment to make part observations. Why execute you think one egg sinks and the other egg floats?

Find the end the answer in the just how does this experiment job-related section below.

Video Tutorial

Watch the Floating Egg science Experiment step by step Instructions

How does the Floating Egg scientific research Experiment Work

Why does the egg sink in regular tap water, but float in saltwater? The price lies in the thickness of water!

Density is a measure up of the mass per unit volume of a substance. Merely said, just how much “stuff” in a offered volume. Water has a density of 1 g/mL (g/cm3). Objects will certainly float in water if their density is much less than 1 g/mL. Objects will certainly sink in water if their thickness is better than 1 g/mL.

The egg will sink in constant tap water because the density of the egg is higher than the thickness of water. The egg’s density is only slightly higher than water at 1.03 g/mL, but that is sufficient to do the egg sink.

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When you include salt come the water, friend are boosting the thickness of the water by adding an ext mass (or stuff) in the offered volume. You nothing really adjust the volume the the water by including salt. By including enough salt, you increase the density of the water so that it is greater than the density of the egg and also the egg will float!

Other ideas to Try

Try this experiment again, but instead of using an egg usage a potato slice or a carrot slice. Friend will have to play roughly with the quantity of salt you include to the water due to the fact that all objects have their own distinct density. Add salt a tablespoon in ~ a time and mix well till you can not see any type of salt in the solution, then add your thing to see if the floats or sinks. Remove your object and keep including salt till you can gain your object to float. To do it a true scientific research experiment, create a data table to store track of exactly how much salt you include to the solution.